- Study Overview
- Simulation Setup
- Geometry
- Materials
- Boundary Conditions
- Loading
- Mesh - Simulation Steps
- Results
- Stress Analysis
- Displacement Analysis
- Other Results - Conclusions
- Appendix
- Mesh Details
- Material Properties
- References
🎯 Study Overview
- [Describe the study overview, including the expected outcomes]
Goal of the Study: Compare the stresses on the crown between upper with steel steer tube and upper with alluminum steer tube. Both model with maximum interference on the stanchions and steer tube.
Key Parameters:
- Inner diameter crown-steer tube= 35,78 mm
- Outer diameter steer tube = 39,945 mm
- Inner diameter crown-stanchions = 31,15 mm
- Outer diameter stanchions = 31,2 mm
- Diametral interference crown-steer tube = 0,2 mm
- Diametral interference crown-stanchions = 0,05 mm
Expected Outcomes:
🔧 Simulation Setup
Geometry
- [Describe the geometry of the model]
Geometry is the same for both models, it change only the material on the steer tube.
Materials
- [Describe the boundary conditions]
| Property | Value | Unit |
|---|---|---|
| Name | Aluminum 6013 T6 | - |
| Density | 2.71 | g/cc |
| Young Modulus | 71000 | MPa |
| Poisson Ratio | 0.33 |
| Property | Value | Unit |
|---|---|---|
| Name | Aluminum 6061 T6 | - |
| Density | 2.71 | g/cc |
| Young Modulus | 69000 | MPa |
| Poisson Ratio | 0.33 |
| Property | Value | Unit |
|---|---|---|
| Name | Steel | - |
| Density | 7.85 | g/cc |
| Young Modulus | 210000 | MPa |
| Poisson Ratio | 0.3 |
Boundary Conditions
- Fixed displacement on y on top of steer tube (magenta)
- Simmetry plane zy = Fixed rotations on y and z and displacement on x (green)
- Surface spring on zx on bearing supports (yellow)
- Surface spring on zy on top of the crown (sky blue)
- Fixed rotation on y and displacements x and y for reference point bottom stanchions (blue)
Loading
3 load conditions
-
Only with interference fit, without loads
-
Interference fit + F2=1000 N (along z direction)
-
Interference fit + F1=-1000 N (along z direction)
Mesh
-
[Describe the mesh details]
Mesh Statistics: -
Element Type: [C3D20R] Stanchion + Steer tube
-
Element Type: [C3D15] Crown interface Steer tube + Crown interface Stanchions
-
Element Type: [C3D10] Crown
-
Number of Elements: 390291
Stanchion: 20768
Steer tube: 18236
Crown interface Steer tube: 4420
Crown interface Stanchions: 9072
Crown: 337795 -
Number of Nodes: 769242
Stanchion: 99474
Steer tube: 87073
Crown interface Steer tube: 16075
Crown interface Stanchions: 32424
Crown 534196 -
Element Quality: [PERFECT - no distorted elements]
📊 Simulation Steps
- [Describe simulation steps]
INSERTO MODEL
| Step number / title | 1 - First interference inserto solving |
|---|---|
| Iterations for convergence | 4 |
| Convergence criteria | |
| notes | No added loading - Part fixed away from contact |
| Step number / title | 2- Both interference + 1000N |
| Iterations for convergence | 4 |
| Convergence criteria | |
| notes | |
| Step number / title | 3 - Both interference + -1000N |
| Iterations for convergence | 4 |
| Convergence criteria | |
| notes |
📈 Results
Stress Analysis
ONLY WITH INTERFERENCE
Von Mises Stress
ALUMINUM STEER TUBE
Maximum Von Mises Stress: 280.2 MPa
STEEL STEER TUBE
Maximum Von Mises Stress: 438.4 MPa
SGN MAXIMUM ABSOLUTE PRINCIPAL STRESS
ALUMINUM STEER TUBE
Maximum SGN MAX ABS PRI Stress: 296.8 MPa
Minimum SGN MAX ABS PRI Stress: -234 MPa
STEEL STEER TUBE
Maximum SGN MAX ABS PRI Stress: 469 MPa
Minimum SGN MAX ABS PRI Stress: -357.5 MPa
F2=1000N
Von Mises Stress
ALUMINUM STEER TUBE
Maximum Von Mises Stress: 312.1 MPa
STEEL STEER TUBE
Maximum Von Mises Stress: 458.9 MPa
SGN MAXIMUM ABSOLUTE PRINCIPAL STRESS
ALUMINUM STEER TUBE
Maximum SGN MAX ABS PRI Stress: 296.8 MPa
Minimum SGN MAX ABS PRI Stress: -249.3 MPa
STEEL STEER TUBE
Maximum SGN MAX ABS PRI Stress: 429.8 MPa
Minimum SGN MAX ABS PRI Stress: -356.3 MPa
F1=-1000
Von Mises Stress
ALUMINUM STEER TUBE
Maximum Von Mises Stress: 277.5 MPa
STEEL STEER TUBE
Maximum Von Mises Stress: 458.9 MPa
SGN MAXIMUM ABSOLUTE PRINCIPAL STRESS
ALUMINUM STEER TUBE
Maximum SGN MAX ABS PRI Stress: 289.7 MPa
Minimum SGN MAX ABS PRI Stress: -247.7 MPa
STEEL STEER TUBE
Maximum SGN MAX ABS PRI Stress: 429.8 MPa
Minimum SGN MAX ABS PRI Stress: -356.3 MPa
Displacement Analysis
- [Analysis of displacement results]
insert images
Maximum Displacement: [Maximum displacement value] mm
Other Results
- [Any other relevant results]
🔍 Conclusions
- [Summary of the main findings]
Key Findings:
- [Key finding 1]
Recommendations:
- [Recommendation 1]
📑 Appendix
Mesh Details
Material Properties
[Material 1 name]
References
- [Reference 1]